空间站低噪声流扩散器和限定器。
给出了分子流扩散方程的边界条件，推导出入口压力在线性近似下方程的解。
The molecule flow diffusion equation and the boundary conditions are given. The solution with linear approximation of entrance pressure is presented.
用湍流扩散燃烧的简单概率密度函数模型对等离子发生器燃烧流场进行了数值模拟。
Uses turbulence diffuse combustion and simply PDF model to numerical simulation plasma generator combustion flow.
结果表明：采用随机轨道模型能较好地描述液滴的湍流扩散，适用于有液相蒸发的两相流扩散问题。
It is shown that stochastic model can describe the droplet turbulent dispersion and is suitable for two phase jet dispersion with droplet vaporization.
通过对隧道火灾模型试验，研究隧道发生火灾时烟流性态，着重对隧道内的烟流扩散规律、烟流逆流层的长度、逆流速度、逆流层厚度进行了试验数据的分析。
This paper studies the character of smoke by fire model test in tunnel, emphasizes on the law of smoke distribution t analyses the length, velocity and thickness of refluxed zone.
使用现存的仪器就可以很简单的探测到电荷，因此一股携带电荷的火山灰流很容易进行追踪，即使火山灰流在可见范围内已经大面积扩散。
Electric charges are fairly easy to observe with existing instruments, so a charged plume should be easier to track, even after the visible plume has largely dispersed.
利用该模型可以对火烧油层注气井试井压降曲线进行解释，并求解流度比、扩散比以及各区的波及半径等参数。
With this model, the pressure drop curve of well testing is interpreted, and mobility ratio, diffusion ratio, sweep radius of each area and some other parameters are solved.
数值模拟表明了风遇到建筑物时的绕流情况，研究成果可为城市规划和住宅小区建筑物的优化设计以及分析建筑物周围空气污染物的扩散和累积提供参考和应用基础。
The results also provide the useful guideline and references to a certain extent for city planning and designing as well as the diffusion and cumulation of air pollutants around buildings.
首先研究了扩散燃烧时的流场和温度场。
Firstly We investigated the flow field and temperature field of diffusion fuel.
本文研究一类具有非线性吸收和非线性边界流的非线性扩散方程，建立了解的爆破速率估计。
In this paper, the blow-up rate is determined for a nonlinear diffusion equation with nonlinear absorption and nonlinear boundary flux.
结果表明，伪扩散现象对四角炉膛流场的数值计算有很大的影响；
It is shown that the pseudo diffusion greatly influences the calculated results of the flow field in a tangential firing furnace.
植物主要是通过根系吸收养分，一般通过根系截获、质流和扩散三种方式。
Nutrients are absorbed mainly through roots of plants by interception, mass-flow and diffusion.
通过对不同位置处的流场比较，真实地再现了喉部内置设备对于蒸气流动的阻塞作用以及喉部整体扩散作用。
After the flow-field at different positions was compared, the blocking effect of steam's flow against internal equipments and whole diffuse action in throat were reappeared truly.
研究的区域包括阳极和阴极的流道、扩散层和催化层以及质子交换膜在内的整个单电池。
The studied domain consists of flow channels, diffusion layers and catalyst layers of both the anode and cathode, and the membrane.
不同灌水方式下，质流作用与扩散作用的影响不同。
The affection of mass flow and diffusion are different under different irrigation styles.
根据试验结果，分别运用轴向扩散模型和多釜全混流反应器串联模型，对反应器沉淀区和循环区的流态进行了分析和判断。
Based on the experimental results, the flow pattern in the settling section and the circulating section of reactor were analyzed by axial dispersion model and tank-in-series model, respectively.
研究的区域包括阴极和阳极的流道、扩散层、催化层和质子交换膜。
The studied domain consists of fluid channels, diffusion layers and catalyst layers of anode and cathode, and membrane.
提出在流道设计时应最大限度地利用流道宽度方向的扩散，以免出口断面的有效面积过多地被旋涡挤占。
It is suggested that the diffusion in the horizontal direction of the conduit should be utilized to restrain the effect of the vortex.
讨论具有一般形式的对流项、扩散项、边界流项以及反应项的一维牛顿渗流方程初边值问题非负解的整体存在性。
The present paper studied the global existence of nonnegative solutions of one-dimensional Newtonian filtration equation with more general boundary fluxes term, reaction, diffusion and convection.
研究表明，在常用的工业条件下，过程为典型的流体滞流膜扩散控制。
The results indicated that under normal industrial conditions, the process is controlled by diffusion of fluid stagnant film.
给出了漂移信息流和扩散信息流的表达式、信息减损率和信息熵产生率的简明公式。
Expressions of drift information flow and diffusion information flow, and concise formulas of information dissipation rate and information entropy production rate are given.
模拟了开门过程病房内外压差的变化，门附近的流场状况，以及进出门气流的变化状态，探讨了开门对污染物扩散的影响。
Simulates the changes of pressure difference, velocity field and the air flow in the door opening process, and discusses the influence to the contamination dispersion.
本文研究了在初始密度差极小的情况下由双扩散效应引起的异重流的流动特性。
A gravity current flow of double - diffusive effects has been investigated under the condition of very small density difference.
扩压叶片与隔舌相对位置对扩散段流场的分布有影响，适当调整可以减小水力损失。
The relative position between the diffusion blade and the volute tongue has influence on the distribution of diffuser flow field and the position is regulated suitably to reduce the hydraulic loss.
迳流和潮差是影响污水稀释扩散效果的主要因素。
Runoff and tidal range are the main factors influencing the effects of dilution and dispersion.
针对2k70型轴流式通风机从集流器进口到扩散器出口的内部三维全流场做了定常的数值模拟。
A numerical simulation of the three-dimensional steady flow field in the whole flow field, from the inlet of the collector to the outlet of the diffuser, a 2k70 axial-flow fan is performed.
本文采用双组分环状二相流模型对吸收-扩散式制冷系统蒸发器的传热进行了分析计算。
In this article the analytical calculation has been made for the evaporator heat transfer in absorption-diffusion refrigeration system with the annular two-phase two-component heat transfer model.
湍流气粒两相流中主要有两个问题：颗粒的扩散与湍流变动。
There are two main problems in the gas-particles two-phase turbulence flows: particles dispersion and turbulence modulation.
湍流气粒两相流中主要有两个问题：颗粒的扩散与湍流变动。
There are two main problems in the gas-particles two-phase turbulence flows: particles dispersion and turbulence modulation.
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